Winding and twisting device for textile fibers



Oct. 10, 1944. 4. NOGUERA w 2,360,153

4 WINDING AND TWIS'I'ING DEVICE FOR TEXTILE FIBERS Filed April 26, 19452 Sheets-Sheet '1 Inven or 0860A flguera/ t J ZI- A ftorneys Oct. 10,1944, 4; NOGUERA 2,350,153

WINDING AND TWISTING DEVICE FOR TEXTILE FIBERS Filed, ApriI 20, 1943 2Sheds-Sheet 2 v 86705 Inventor A ttorneys Patented Oct. 10, 1944 @FFICEWINDING A-ND TWISTING DEVICE FOR TEXTILE FIBERS Joseph N oguera,Manchcster, England Application April 20, 1943, Serial No. 483,780 InGreat Britain May 20, 1942 9 Claims.

This invention relates to machines such as are used in the textileindustry for twisting rovings or yarns and winding them on to thebobbins or spools.

In such machines, the bobbin or spool is usually mounted on a spindle,which rotates about a fixed axis whilst the roving or yarn being twistedand wound and the associated guid ng device rotates about the bobbin orspool. The necessity of swinging the textile material round the flyer orspindle unit means that the textile material is subjected toconsiderable friction and stresses due to such factors as air resistanceand centrif ugal force.

To overcome these disadvantages, it has been proposed tc reverse thearrangement, that is to say, to feed the textilematerial along a fixedaxis and to cause the spindle or bobbin to rotate about said fixed axiswhilst revolving on its own axis. For such an arrangement to functionsuccessfully, particularly at high speeds, it is necessary to providemeans for balancing the centrifugal outward th ust of the bobbin as itmoves around the material to be wound. However, this presents mechanicaldifliculties, since the weight of the bobbin is constantly increasing asit is being filled, and the resulting mechanism is in any case too bulkyand complicated for effective use at high speeds, whilst the high costof construction renders its use uneconomical.

It is among the objects of the present invention to provide a windingand twisting mechanism of the kind in which the bobbin or spool rotatesbodily about the material to be wound, but in which the rotation of theunit is automatically and correctly balanced and the mechanicalconstructlon of the mechanism simple and eifective.

In a winding and twisting device according to the present invention, twoends of the material to be wound ancttwisted are fed separately fromopposite ends along a fixed axis to two bobbins which are diametricallydisposed about said fixed axis-and are adapted to be rotated bodilyabout said fixed axis while rotating on their own axes.

According to a preferred embodiment, the bobbins are mounted on a frameand are rotated, by the rotation of said frame, within an outer drum orcasing, against th inner surface of which the bobbins are caused to bearto effect rotation on their own axes.

The hollow casing or drum is driven by any convenient means, such as abelt drive, and the relation between the speed of the drum and the speedof the bobbin frame determines the rate at which winding takes place andtherefore the amount of twist per unit length wound, since one turn oftwist is imparted for each revolution of the frame. The winding speed isthus a definite and straight-forward factor, easily and exactlycontrollable at will. y

The material to be wound and twisted is fed to the mechanism from theopposite ends of a single feed tube or the like which extends throughthe whole unit along the horizontal axis thereof and is formed withsuitably disposed outlets for the material to pass from the tube to thebobbins. Relative transverse motion between the feed device and thebobbins may be obtained by reciprocating either the bobbins or thecentral feed device, but it is preferred to keep the feed device fixedand reciprocate the bobbins.

Oneembodiment of the invention will now be described with reference tothe accompanying diagrammatic drawings in which:

Figure 1 is a side elevational view of the mechanism partly in section.

Figure 2 is a corresponding end elevational View. l v

Figure 3 is a corresponding plan view.

Figures 4 and 5 are longitudinal sectional and end views of the outercasing or drum, and

Figures 6 and 7 are longitudinal sectional and end views of the bobbinframe.

Referring to the drawings, 'two bobbins it are rotatably supported inslotted arms i2 which are pivotally secured to lugs l3 located indiametrically opposed positions on a frame it. The bobbins it are causedto bear against the internal surface of a cylindrical drum or casing H,whereby, on relative motion between the drum or casing H and the frameit, the bobbins are rotated on their own axes. The arm it are initiallyurged to maintain the bobbins in contact with the inroving guide orpresser member it which is the whole winding and twisting unit. To thisfixedly mounted on the feed tube it and is arranged with its bladestransversely tangential to the bobbins it) whereby the feed tube i6 iscaused to rotate when the frame it, and therefore the bobbins Iii, arerotated.

Th drum or casing i i is supported and guided by rollers it and isrotated thereon by the belt drive 20 from the drum 2i. Similarly, theframe it is supported and guided by rollers 22 and is rotated thereon bythe belt drive 23 from the I driun 26.

Relative transverse motion between the feed-- ing device and the bobbinsto cause the material to be spirally wound is achieved by reciprocatingIt will be seen that the drum H and frame i4 are independently mountedand, in the operation of the machine, are driven separately in thesamedirection but at different speeds. The mechanism functions completelywithout rotating the outer drum H, but in this case, the amount of twistimparted to the material is too small in relation to the length wound.It is to increase the amount of twist that the frame It is rotated inthe same direction as the drum II but slightly slower. The amount oftwist imparted to the material per unit length wound can be varied byvarying the relative speed between the frame l4 and the drum II. If theframe H were driverf at the same speed as the drum H, the material wouldreceive one turn of twist for each revolution of the frame l4 but nowinding would take place. The arrangement according to the presentinvention secures a uniform winding speed at all stages i. e. at all thedifferent diameters of the bobbin as the material is being woundthereonto.

A winding and twisting device according to the present invention handlestwo ends of material and, therefore, its relative cost of constructionper working unit is. low.

What I claim and desire to secure by Letters Patent of the United Statesis:

1. A winding and twisting device for textile fibers, consisting of aframe, two bobbins mounted thereon in diametrically opposed positions,means for rotating said frame and therewith said bobbins, a drum againstthe interior surface of which the bobbins are disposed to bear to efiectrotation on their own axes, means for rotating said drum in the samedirection as said frame, and a feed tube which extends through thedevice along the horizontal axis thereof and is formed with suitablydisposed outlets for two ends of material which are fed from oppositeends of said feed tube, through said openings and on to said bobbins.

2. A winding and twisting device for textile fibers, consisting of aframe, two bobbinsrotatably supported in slotted arms pivotally securedin diametrically opposed positions on said frame, means for rotatingsaid frame and therewith said bobbins, a cylindrical drum against theinner curved surface of which the bobbins are caused to bear to effectrotation on their own axes,

means for rotating said drum in the same direction as said frame, and afeed tube which extends through the device along the horizontal axisthereof and is formed with suitably disposed outlets for two ends ofmaterial which are fed from opposite ends of said feed tube, throughsaid openings and on to said bobbins.

3. A winding and twisting device according to claim '1, in which saidframe and said drum are independently mounted on rollers, and includingindependent means for rotating said frame and said drum on said rollers.

4. A winding and twisting device for textile fibers, consisting of aframe, two bobbins mounted thereon in diametrically opposed positions,means for rotating said frame and therewith said bobbins, a drum againstthe inner curved surface of which the bobbins are caused to bear toeffect rotation on their own axes, means for rotating said drum in thesame direction as said frame, a feed tube which extends through thedevice along the horizontal axis thereof and is formed with suitablydisposed outlets for two ends of material which are fed from oppositeends of said feed tube, and means for reciprocating said frame and saiddrum with respect to said feed tube.

5. A winding and twisting device for textile fibers, consisting of aframe, two bobbins mounted thereon in diametrically opposed positions,said frame being rotatably mounted on rollers, a cylindrical casingagainst the inner surface of which the bobbins are caused to bear toeffect rotation of their own axes, said casing being rotatably mountedon rollers, a feed tube extending along the horizontal axis of thedevice and formed with suitably disposed outlets for two ends of thematerial fed from opposite ends of said feed tube, and a carriage whichis adapted for reciprocatory motion with respect to said feed tube andupon which the rollers supporting said frame and said casing aremounted.

- 6. A winding and twisting device for textile fibers consisting of aframe, two bobbins mounted thereon in diametrically opposed positions,means for rotating said frame and therewith said bobbins, a drum againstthe internal surface of which the bobbins are caused to bear to effectrotation on their own axes, means forrotating said drum in the samedirection as said frame, a feed tube which extends through the devicealong the horizontal axis thereof and is formed with suitably locatedoutlets for two ends of material fed from opposite ends of said feedtube, and means for transmitting the rotary motion of said bobbins aboutsaid feed tube to said feed tube.

'7. A winding and twisting device according to claim 6, in which themeans for transmitting the rotary motion of. said bobbins about saidfeed tube to said feed tube, consists of a double-bladed roving guidewhich is fixedly mounted on said feed tube with its blades transverselytangential to the bobbins.

8. A winding and twisting. device for textile fibers, consisting of aframe, twobobbins rotatably supported in slotted arms pivotally securedin diametrically opposed positions on said frame, said frame beingrotatably mounted on rollers, means for rotating said frame andtherewith said bobbins on said rollers, a cylindrical casing against theinterior surface of which said bobbins are adapted to bear to effectrotation on their own axes, said casing being rotatably mounted onrollers, means for rotating said casing on said rollers in the samedirection as said frame, a feed tube which extends through the devicealong the horizontal axis thereof and is formed with suitably disposedoutlets for two ends of material which are fed from opposite ends ofsaid feed tube, a carriage which is adapted for reciprocatory motionwith respect to said feed tube and upon which the rollers supportingsaid frame and said casing are mounted, and a double-bladed roving guidewhich is fixedly mounted on said feed tube with its blades transverselytangential to said bobbins, whereby the rotary motion of said bobbinsabout said feed tube is transmitted to said feed tube.

9. A winding and twisting device for textile fibers in which two ends ofmaterial to be wound are fed separately from opposite ends along a fixedaxis, comprising a frame, two bobbins mounted thereon in diametricallyopposed positions, means for rotating said frame and therewith saidbobbins, a casing against the inner surface of which the bobbins arecaused to bear to effect rotation on their own axes, and means forfeeding two ends of material to said bobbins along a fixed axis fromopposite ends thereof.

JOSEPH NOGUERA.

